///////////////
//  by 辜勇胜 //
///////////////
#include "camera_config.h"
#include "esp_camera.h"
#include "Arduino.h"

// 定义摄像头优化函数
void set_sensor();

// 初始化摄像头
void camera_init() {
  // 配置摄像头
  camera_config_t config;
  config.ledc_channel = LEDC_CHANNEL_0;
  config.ledc_timer = LEDC_TIMER_0;
  config.pin_d0 = Y2_GPIO_NUM;
  config.pin_d1 = Y3_GPIO_NUM;
  config.pin_d2 = Y4_GPIO_NUM;
  config.pin_d3 = Y5_GPIO_NUM;
  config.pin_d4 = Y6_GPIO_NUM;
  config.pin_d5 = Y7_GPIO_NUM;
  config.pin_d6 = Y8_GPIO_NUM;
  config.pin_d7 = Y9_GPIO_NUM;
  config.pin_xclk = XCLK_GPIO_NUM;
  config.pin_pclk = PCLK_GPIO_NUM;
  config.pin_vsync = VSYNC_GPIO_NUM;
  config.pin_href = HREF_GPIO_NUM;
  config.pin_sscb_sda = SIOD_GPIO_NUM;
  config.pin_sscb_scl = SIOC_GPIO_NUM;
  config.pin_pwdn = PWDN_GPIO_NUM;
  config.pin_reset = RESET_GPIO_NUM;
  config.xclk_freq_hz = 20000000;
  config.pixel_format = PIXFORMAT_JPEG;

  config.frame_size = FRAMESIZE_SVGA;
  config.jpeg_quality = 12;
  config.fb_count = 1;
  // 初始化
  esp_err_t err = esp_camera_init(&config);

  if (err != ESP_OK) {
    Serial.printf("Camera init failed with error 0x%x", err);
    // 中断执行后续步骤
    while (1) {}
  }

  // 摄像头优化
  set_sensor();
}

// 摄像头优化
void set_sensor() {
  sensor_t * s = esp_camera_sensor_get();
  // 水平翻转
  s->set_vflip(s, 1);
  // 提高亮度
  s->set_brightness(s, 1);
  // 降低饱和度
  s->set_saturation(s, -2);
}
